DISCLAIMER: This is any Item or Assembly for sale that may have a rough appearance due primarily but not limited to milling, dents, scratches, uneven finish and missing or poorly applied stenciling. The term blemished applies to any defect to the appearance of the item or assembly sold and does not affect its function.

The flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper! To ensure even more strength they are Mil-Spec Type 3 hard coat anodized in rugged black.

This Classic SBR features a 7.5” 5.56 barrel made of the best barrel material known to man, 4150 Chrome Molly steel! This SBR has a 1:7 twist rate, pistol gas system and head spaced twice from the US manufacturer. This barrel is incredible accurate and durable, the strength comes from the 4150 CM steel and the Nitride coating!

The rail is engineered and manufactured in Germany. The 7” Hera IRS Quad Float rail’s design is a classic picatinny handguard. It is made from Airplane grade Aluminum then CNC milled! The rails are then hard coat anodized to improve the strength!

Please Note: An “AR-15 Pistol” upper assembly has a barrel less than 16” in length. Pistol uppers are only for use on AR-15 pistol lowers and legal Short-Barreled Rifles. Other configurations may violate Federal law. Installation of AR-15 upper assemblies with certain features including, but not limited to: flash hiders, bayonet lugs, and threaded muzzles may violate state and/or local laws.

Customer Reviews

AR15 Parts

CBC Industries offers reliable, dependable, and the highest quality AR15 parts and AR15 accessories! We back all of our AR15 parts and products with our LIFETIME Warranty. Feel free to call us with any questions at (843)818-4374.

Welcome to CBC Industries! We provide high quality AR10 & AR15 upper receiver assemblies, as well as AK47, AR10, & AR15 barrels, AR15 parts, and accessories for the enthusiast and builder alike. We are also an official Hera Arms retailer and supplier. Unlike other outlets, our products are almost always in-stock and are ready to be delivered immediately. We feature a talented production team staffed by US veterans that provide the type of quality that our vets would stand behind!